Gossen Metrawatt Metrahit Iso Insulation measuring device, CAT III 600 V Metrahit Iso Benutzerhandbuch
Produktcode
Metrahit Iso
GMC-I Gossen-Metrawatt GmbH
31
Measurements: V/Hz,
Ω, , Temp (°C/°F),
, M
Ω
@UISO
, A/Hz
RPM Measurement (function only available with customer-specific variant)
Revolutions per minute (also known as rotational frequency) are
measured by acquiring pulses. As a prerequisite for this measure-
ment, the number of measurable pulses per revolution must first
be set in the RPM setup menu (
measured by acquiring pulses. As a prerequisite for this measure-
ment, the number of measurable pulses per revolution must first
be set in the RPM setup menu (
vpm
≠ 0FF, see below).
➭ Set the rotary switch to V~.
➭ Repeatedly press the FUNC | ENTER multifunction key until
➭ Repeatedly press the FUNC | ENTER multifunction key until
RPM is briefly displayed. The measured value then appears in
RPM, for example “244.3 r”.
RPM, for example “244.3 r”.
Measured value RPM = revolutions per minute.
Parameter
vpm = pulses per revolution.
Pulses per Revolution Setup Menu
1nFo
Z
...
Z
SET
rAtE
V
...
V
vpm
0ff/1 :1 ... 1000
Y
ZUV
5.1.3 Transient Overvoltages
The multimeters are protected against transient overvoltages of up
to 6 kV with wave-front durations of 1.2 ms and halftimes of 50
The multimeters are protected against transient overvoltages of up
to 6 kV with wave-front durations of 1.2 ms and halftimes of 50
μs
in the voltage measuring range. If longer pulse durations are ex-
pected, e.g. when conducting measurements at transformers or
motors, use of our KS30 measuring adapter is recommended. It
provides protection against transient overvoltages of up to 6 kV
with wave-front durations of 10, and halftimes of 1000
pected, e.g. when conducting measurements at transformers or
motors, use of our KS30 measuring adapter is recommended. It
provides protection against transient overvoltages of up to 6 kV
with wave-front durations of 10, and halftimes of 1000
μs. Continu-
ous load capacity is 1200 V
RMS
. Additional influence error caused
by the KS30 measuring adapter amounts to approximately –2%.
5.1.4 Voltage Measurements at Above 1000 V
Voltages of greater than 1000 V can be measured with a
high-voltage probe, e.g. the HV3
Voltages of greater than 1000 V can be measured with a
high-voltage probe, e.g. the HV3
1
or the HV30
2
from
GMC-I Gossen-Metrawatt GmbH. It is absolutely essential to
earth the ground terminal in this case. Observe all applicable
safety precautions!
earth the ground terminal in this case. Observe all applicable
safety precautions!
1
HV3: 3 kV
2
HV30: 30 kV, for (DC) voltages only
RPM
Revolutions
min
--------------------------------
Pulses
Revolution
-----------------------------
⁄
⎝
⎠
⎛
⎞ x60s
s
--------
=
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM mA A
V
Temp
Ω MΩ
ISO
Voltage Measurements at Above 1000 V
with the HV3 High-Voltage Probe
with the HV3 High-Voltage Probe
Black
Red
Bl
a
ck
x1000
x100